Controller for gear shifting of on-load tap-changer

Abstract

The utility model discloses a controller for gear shifting of an on-load tap-changer, which comprises a controller body and a hollow box, a filter screen is slidably mounted in the hollow box, a mounting column is mounted at the top end of the hollow box, and the top end of the mounting column penetrates out of the controller body and is provided with a control box. An angle adjusting mechanism is arranged in the control box, and a rain shielding mechanism is arranged at the moving end of the angle adjusting mechanism. According to the utility model, the angle adjusting mechanism is arranged to adjust the air outlet volume at the top end of the controller main body, so that when heat exchange is carried out in the controller main body, heat can be quickly dissipated to the greatest extent; the controller has the advantages that the controller can be contracted in sunny days without affecting heat exchange in the controller body, rainwater can be effectively shielded in rainy days, and meanwhile, a filter screen is slidably connected with a hollow box, so that convenience is brought to workers during cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a controller for gear adjustment of an on-load tap changer. Background Art

[0002] When the power system is operating normally, unexpected changes in voltage will directly affect the production of the equipment in use, so voltage regulation is one of the main tasks of the power system. The on-load voltage adjustment of the controller is to adjust the voltage through the on-load tap changer without power outage. The on-load tap changer is the main device for the on-load voltage adjustment of the controller. It has a fast adjustment speed and can be adjusted at any time, which is convenient for the staff to realize automatic management. For example, a controller for shifting a load tap changer disclosed in the authorization announcement number CN219418807U includes a controller body, a host is arranged inside the controller body, a buffer pad is arranged on the bottom surface of the controller body, a terminal head is installed on the rear surface of the controller body, a terminal head is arranged inside the side of the electric shock sheet close to the controller body, the terminal head is in the shape of a rectangular frame, a threaded hole is penetrated on the side surface of the terminal head away from the electric shock sheet, a bolt is installed inside the threaded hole, a block is arranged at one end of the bolt inserted into the terminal head, the block is in the shape of a disc with a T-shaped cross section, an extrusion plate is wrapped on the outer surface of the block of the inner wall of the terminal head, and an anti-slip tooth pattern is arranged on the side surface of the extrusion plate close to the electric shock sheet. However, during the use of the controller, although the heat dissipation is achieved through the cooperation of the heat dissipation fins and the ventilation grooves, when the device is dissipating heat, the buffer pad on the top of the controller body may block the ventilation groove, which is not conducive to the circulation of hot air inside the device, and when it rains outdoors, rainwater will enter the device through the ventilation groove, which is easy to cause the host to be burned. Utility Model Content

[0003] The utility model aims to provide a controller for shifting a load tap changer, so as to solve the problem in the above-mentioned background technology that the ventilation groove of the equipment is easily blocked when dissipating heat, which is not conducive to timely heat dissipation, and when it rains outdoors, rainwater will enter the interior of the equipment through the ventilation groove, which is easy to cause the main unit to be burned.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a controller for shifting a load-on tap changer, comprising a controller body, a main machine installed at the bottom of the controller body, a hollow box installed at one end inside the controller body, a filter screen slidably installed inside the hollow box, a mounting column installed at the top of the hollow box, the top of the mounting column passes through the outside of the controller body and is installed with a control box, an angle adjustment mechanism is arranged inside the control box, a rain shield mechanism is arranged at the movable end of the angle adjustment mechanism, a PLC control panel is installed on the surface of the controller body, and the output end of the PLC control panel is electrically connected to the angle adjustment mechanism and the input end of the rain shield mechanism.

[0005] Preferably, the angle adjustment mechanism includes two rotating shafts rotatably mounted on the inner wall of one side of the control box, a half gear is mounted on one end of the rotating shaft surface, a rain shield is mounted on the surface of the half gear, and a motor 1 for driving one of the rotating shafts to rotate is mounted on the inner wall of the other side of the control box, and the input end of the motor 1 is electrically connected to the output end of the PLC control panel.

[0006] Preferably, the rain shield mechanism includes a central axis rotatably mounted on the inner wall of one side of the rain shield and a rack unit slidably mounted on the top of the rain shield, the surface and inner surface of the rack unit are both installed with extension plates, one end of the surface of the central axis is installed with a gear unit meshing with the rack unit, and a motor 2 for driving the central axis to rotate is installed on the inner wall on the other side of the rain shield, and the input end of the motor 2 is electrically connected to the output end of the PLC control panel.

[0007] Preferably, a protrusion is installed on both inner walls of the hollow box, and a groove for sliding with the protrusion is provided on both outer walls of the filter.

[0008] Preferably, a second protrusion is installed on one side of the top end of the rack monomer, and a second groove for the second protrusion to slide is provided on the top of the rain shield.

[0009] Preferably, diatom mud panels are installed on the inner walls on both sides of the controller body, and a pull ring is installed on the surface of the filter.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the on-load tap changer gear shifting controller, through the two ends of the angle adjustment mechanism simultaneously rotate upward, expands the angle between the angle adjustment mechanism and the top of the controller body, so that the hot air inside the controller body flows faster when exchanging heat with the external air. On rainy days, it is only necessary to extend the rain shield mechanisms at the same time until the diameter between the two rain shield structures is larger than the diameter of the controller body. At this time, rainwater can slide along the top of the rain shield structure to the ground; the air outlet at the top of the controller body is adjusted by setting the angle adjustment mechanism, so that the interior of the controller body can quickly dissipate heat to the greatest extent when heat exchange is carried out. In addition, by setting a retractable rain shield structure, it can not only meet the requirements of shrinking without affecting the heat exchange inside the controller body when the weather is clear, but also can effectively block the rain on rainy days. At the same time, by the sliding connection between the filter net and the hollow box, it is more convenient for the staff to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0013] Figure 3 It is a schematic diagram of the main cross-sectional structure of the extension plate of the utility model when it is retracted;

[0014] Figure 4 It is a schematic diagram of the main structure of the utility model.

[0015] In the figure: 1. controller body; 2. host; 3. hollow box; 301. bump one; 4. filter; 401. pull ring; 5. mounting column; 6. control box; 7. rotating shaft; 8. half gear; 9. rain shield; 10. motor one; 11. center axis; 12. gear unit; 13. motor two; 14. rack unit; 1401. bump two; 15. extension plate; 16. diatom mud panel; 17. PLC control panel. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4The utility model provides an embodiment: a controller for shifting a load tap changer, comprising a controller body 1, a main machine 2 is installed at the bottom of the controller body 1, a hollow box 3 is installed at one end of the inside of the controller body 1, and a filter 4 is slidably installed inside the hollow box 3. When ventilation and heat dissipation are performed, hot air inside the controller body 1 is emitted through the filter 4, and external dust is intercepted on the filter 4, effectively keeping the inside of the controller body 1 clean;

[0018] A mounting column 5 is installed at the top of the hollow box 3, and the top of the mounting column 5 passes through the outside of the controller body 1 and is installed with a control box 6. An angle adjustment mechanism is provided inside the control box 6, and a rain shielding mechanism is provided at the movable end of the angle adjustment mechanism. A PLC control panel 17 is installed on the surface of the controller body 1, and the output end of the PLC control panel 17 is electrically connected to the input end of the angle adjustment mechanism and the rain shielding mechanism;

[0019] The angle adjustment mechanism includes two rotating shafts 7 rotatably mounted on the inner wall of one side of the control box 6, a half gear 8 is mounted on one end of the surface of the rotating shaft 7, a rain shield 9 is mounted on the surface of the half gear 8, and a motor 10 for driving one of the rotating shafts 7 to rotate is mounted on the inner wall of the other side of the control box 6, the input end of the motor 10 is electrically connected to the output end of the PLC control panel 17, the motor 10 is controlled to work by the PLC control panel 17, and the rotating shaft 7 is driven by the motor 10 to rotate, at this time the half gear 8 rotates at the same time, and the other half gear 8 meshing with the half gear 8 rotates in the opposite direction, and then the two rain shields 9 are simultaneously moved upward or downward to move closer to each other, so that the air flow speed inside the controller body 1 is adjusted by adjusting the angle between the rain shield 9 and the top of the controller body 1;

[0020] The rain shielding mechanism includes a central shaft 11 rotatably mounted on the inner wall of one side of the rain shielding plate 9 and a rack monomer 14 slidably mounted on the top of the rain shielding plate 9. Extension plates 15 are mounted on the surface and inner surface of the rack monomer 14. A gear monomer 12 meshing with the rack monomer 14 is mounted on one end of the surface of the central shaft 11. A motor 2 13 for driving the central shaft 11 to rotate is mounted on the inner wall of the other side of the rain shielding plate 9. The input end of the motor 2 13 is electrically connected to the output end of the PLC control panel 17. The motor 2 13 is controlled by the PLC control panel 17 to work. The central shaft 11 is driven by the motor 2 13 to rotate, and then the gear monomer 12 is driven to rotate. At this time, the rack monomer 14 meshing with the gear monomer 12 slides on the top of the rain shielding plate 9, so that the extension plate 15 extends out of the interior of the rain shielding plate 9, effectively blocking rainwater from entering the interior of the controller body 1.

[0021] The inner walls of both sides of the hollow box 3 are both provided with protrusions 301, and the outer walls of both sides of the filter 4 are both provided with grooves 1 for sliding with the protrusions 301. The surface of the filter 4 is provided with a pull ring 401. When the staff cleans the dust, they only need to pull the pull ring 401 to slide the filter 4 out of the hollow box 3, and then replace the filter 4. The cleaning process is simple and convenient.

[0022] A protrusion 1401 is installed on one side of the top of the rack unit 14, and a groove 2 for the protrusion 1401 to slide is provided on the top of the rain shield 9. Diatom mud panels 16 are installed on the inner walls on both sides of the controller body 1. The diatom mud panels 16 effectively prevent water vapor from the controller body 1 from dripping onto the host 2, thereby extending the service life of the host 2.

[0023] When the embodiment of the present application is in use, the staff first controls the two ends of the angle adjustment mechanism to rotate upward at the same time through the PLC control panel 17, thereby expanding the angle between the angle adjustment mechanism and the top of the controller body 1. At this time, the hot air generated inside the controller body 1 passes through the hollow box 3 and the filter 4 to be emitted to the outside at the same time. Since the distance between the angle adjustment mechanism and the top of the controller body 1 becomes larger, the hot air is less obstructed during the emission process and the circulation speed is faster. While heat exchange is carried out with the external air, the external dust is blocked on the filter 4 and is difficult to enter the controller body. After the interior of the controller body 1 is ventilated for a period of time, the filter screen 4 can be slid out of the outside of the hollow box 3 by pulling the pull ring 401, and a new filter screen 4 can be replaced; in case of rainy days, the staff needs to use the PLC control panel 17 to first adjust the two ends of the angle adjustment mechanism closer to each other, and then extend the rain shielding mechanism until the diameter between the two rain shielding structures is larger than the diameter of the controller body 1. At this time, rainwater can slide along the top of the rain shielding structure to the ground, and the water vapor that may be generated inside the controller body 1 is absorbed by the diatom mud panels 16 on both sides, which effectively prevents water vapor from dripping onto the host 2.

Claims

1. A controller for shifting a load tap changer, characterized in that: The invention comprises a controller body (1), a main machine (2) is installed at the bottom of the controller body (1), a hollow box (3) is installed at one end inside the controller body (1), a filter (4) is slidably installed inside the hollow box (3), a mounting column (5) is installed at the top of the hollow box (3), the top of the mounting column (5) passes through the outside of the controller body (1) and is installed with a control box (6), an angle adjustment mechanism is arranged inside the control box (6), a rain shielding mechanism is arranged at the movable end of the angle adjustment mechanism, a PLC control panel (17) is installed on the surface of the controller body (1), and the output end of the PLC control panel (17) is electrically connected to the input end of the angle adjustment mechanism and the rain shielding mechanism.

2. The on-load tap changer gear-shifting controller according to claim 1, characterized in that: The angle adjustment mechanism comprises two rotating shafts (7) rotatably mounted on the inner wall of one side of the control box (6), a half gear (8) being mounted on one end of the surface of the rotating shaft (7), a rain shield (9) being mounted on the surface of the half gear (8), and a motor (10) for driving one of the rotating shafts (7) to rotate being mounted on the inner wall of the other side of the control box (6), the input end of the motor (10) being electrically connected to the output end of the PLC control panel (17).

3. The on-load tap changer gear-shifting controller according to claim 2, characterized in that: The rain shielding mechanism comprises a central shaft (11) rotatably mounted on the inner wall of one side of the rain shielding plate (9) and a rack unit (14) slidably mounted on the top of the rain shielding plate (9), the surface and inner surface of the rack unit (14) are both mounted with extension plates (15), one end of the surface of the central shaft (11) is mounted with a gear unit (12) meshing with the rack unit (14), and a second motor (13) for driving the central shaft (11) to rotate is mounted on the inner wall of the other side of the rain shielding plate (9), and the input end of the second motor (13) is electrically connected to the output end of the PLC control panel (17).

4. The on-load tap changer gear-shifting controller according to claim 1, characterized in that: Both inner walls of the hollow box (3) are provided with protrusions (301), and both outer walls of the filter screen (4) are provided with grooves (1) for sliding with the protrusions (301).

5. The on-load tap changer gear-shifting controller according to claim 3, characterized in that: A second protrusion (1401) is installed on one side of the top end of the rack monomer (14), and a second groove for the second protrusion (1401) to slide is provided on the top of the rain shield (9).

6. The on-load tap changer gear-shifting controller according to claim 1, characterized in that: Diatom mud panels (16) are installed on the inner walls on both sides of the controller body (1), and a pull ring (401) is installed on the surface of the filter screen (4).

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